* Recruiting: You can recruit an Ariados by finding it in the Mystery Dungeon and befriend it. You can do this by talking to it and completing its requests, ultimately convincing it to join your team. However, this method is entirely random and requires a bit of luck.
* Trading: You can trade an Ariados with another player who owns it. This method requires having another player with an Ariados and requires you to have access to the trading feature in the game.
* Using a cheat device: Using a cheat device like an Action Replay or Gameshark can allow you to obtain an Ariados without actually catching it. However, this method is considered cheating and may violate the game's rules.
Remember, the most legitimate way to obtain an Ariados is through recruiting it in a Mystery Dungeon. It might take some time and effort, but it's the most satisfying method!